1303553123 has 2 divisors, whose sum is σ = 1303553124. Its totient is φ = 1303553122.

The previous prime is 1303553107. The next prime is 1303553177. The reversal of 1303553123 is 3213553031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1303553123 - 2⁴ = 1303553107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303553092 and 1303553101.

It is not a weakly prime, because it can be changed into another prime (1303553023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651776561 + 651776562.

It is an arithmetic number, because the mean of its divisors is an integer number (651776562).

Almost surely, 2^1303553123 is an apocalyptic number.

1303553123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303553123 is an equidigital number, since it uses as much as digits as its factorization.

1303553123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 1303553123 is about 36104.7520833477. The cubic root of 1303553123 is about 1092.3862998723.

The spelling of 1303553123 in words is "one billion, three hundred three million, five hundred fifty-three thousand, one hundred twenty-three".